CN101510711A

CN101510711A - Exhaust gas drive double-salient-pole generator

Info

Publication number: CN101510711A
Application number: CNA2009101334013A
Authority: CN
Inventors: 柳小伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2009-08-19

Abstract

The invention discloses a waste gas-driven double salient pole generator, which comprises a rotor, a stator, a front end cover, a back end cover, a turbine and a turbine casing and adopts a double salient polar structure of the rotor and the stator. No electric brush, permanent magnet and winding are fixed on the rotor; the turbine is arranged in the center of the turbine casing and fixed on a shaft through a nut and the turbine casing is fixed on the back end cover of the generator through a bolt; the stator is sleeved with a centralized armature winding and a field winding or provided with a centralized armature winding and a permanent magnet. The generator is characterized by the compact structure, quick response, no carbon brush and slip ring structure with, low fault rate and high energy utility ratio and is driven by the waste gas emitted by vehicles, thus saving energy, and realizing the actual utilization of the energy of the waste gas.

Description

Exhaust gas drive double-salient-pole generator

Technical field

The invention provides a kind of exhaust gas drive double-salient-pole generator, belong to the automobile current generator field.

Background technology

Automobile plays an important role in the various aspects of industrial and agricultural production, communications and transportation and human being's production life, and mostly automobile current generator is directly to be driven by engine at present, consumes bigger effective power; Contain in the tail gas that car, particularly agricultural vehicle, truck, special purpose vehicle are discharged lot of energy is arranged, in some sedan limousine, utilize this part energy and obtained great success at present by turbocharging technology, as seen the huge effect of these energy, but these energy still are in and are difficult to utilize state in most of vehicles, and reason is that existing technology exists equipment complexity, shortcoming that use cost is high.

As the disclosed a kind of waste gas turbine supercharged power generator of patent of invention ZL02107205.1, its design feature is: permanent magnet or be embedded on the compressor impeller or be installed on the rotor main shaft or be contained on the back of compressor impeller, coil windings then is fixed on compressor housings or the middle casing, and keeps certain distance before both.This generator can generate electricity in turbo charge system work, thereby has just limited its scope of application, particularly be difficult in middle-size and small-size, in keep out in abundanter agricultural vehicle of car and exhaust energy and the special purpose vehicle and use; And, the energy that is contained in the waste gas can drive compressor impeller, armature spindle with the 100000 speed high speed rotating that change per minutes, well imagine, the described setting-in of this patent the impeller of permanent magnet will fly out or burst, if p-m rotor is installed on axle, also will destroy the overall structure of axle, reduced the mechanical strength of axle, or redesign employing better material, but so just increased cost; In turbo charge system, increased electricity generation system, thereby transformed the mechanical energy that contains in a part of waste gas, influenced the work of pressure charging system, otherwise will redesign; In sum, unique innovative point--" can make full use of existing equipment, so just can redesign again, save a part of procedure "--is difficult to realize described in this patent specification, want to realize that electricity generate function just must redesign, but still lose more than gain.

The described exhaust gas driven electric field excitation salient pole generator of application number 200810157302.4 described patents of invention, adopt the structure that salient pole type electricity excitation winding is installed on the rotor, have carbon brush and slip ring, easily burn line, broken string during high speed rotating, carbon brush and slip ring easily damage, and use and the maintenance cost height.

Application number 200710013051.8 described exhaust gas turbine driving claw pole type permanent magnet generators, adopting rotor is the structure of the permanent-magnet claw utmost point, be fixed with successively on the axle every magnetic lining, permanent magnetic material and the pawl utmost point, complex structure, change under the high speed rotating of per minute 100,000, be easy to occur the extremely loosening situation of screw, permanent magnetic material, pawl.

Just because of the existence of the problems referred to above, the waste gas generation technology is difficult to enter the practical stage in vehicle always, and the energy that contains in the waste gas just obtains utilizing in a small amount of sedan limousine.

The double salient-pole electric machine structure is to be proposed by professor Lipo of Univ Wisconsin-Madison USA the beginning of the nineties in last century, development so far, become a kind of important motor, has advantages such as being fit to run up, responding soon, control is flexible, volume is little, in light weight, be widely used in motor, control motor, wind-driven generator field, but the rarely found vehicle exhaust that is used for drives electrical generator fields, does not particularly see in the coaxial class generator of turbine and rotor.

As brushless DC electric generator with dual salient poles as described in the patent of invention ZL99114250.0, the rotor that comprises stator and no winding, be set with on the stator and concentrate armature winding and excitation winding,, be applied to vehicle and spacecraft power supply by adding mechanical force transmission working rotor.

Summary of the invention

The invention reside in provides a kind of compact conformation, response is fast, and control is flexible, and volume is little, in light weight, non-carbonate slip ring structure, failure rate is low, the capacity usage ratio height, exhaust gas driven by the vehicle discharge, energy savings really can enter the exhaust gas drive double-salient-pole generator of practical stage, and its technology contents is:

Form by rotor, stator, front end housing, rear end cap, turbine, volute, adopt rotor biconvex electrode structure, brushless, no permanent magnetism, no winding on the rotor; Turbine is installed in volute central authorities, is fixed on the axle by nut, and volute is by being bolted on the commutator end bearing support bracket; Be with on the stator and concentrate armature winding and excitation winding, or concentrated armature winding and permanent magnet are installed.

The advantage of comparison prior art of the present invention is that this patent of invention concentrated numerous advantage of the prior art, specifically have following some:

1, volute is by being bolted on the commutator end bearing support bracket, the axle of turbine is a same axle with the axle of generator, compact conformation, saved the energy loss in the mechanical transmission course, realized high capacity usage ratio, it is little to take up space, easy for installation, the waste gas of being discharged by engine directly drives, and has saved the energy, has reduced cost.

2, adopt rotor biconvex electrode structure, brushless, no permanent magnetism, no winding on the rotor, thus having realized that high speed performance is good, response is fast, and control is flexible, and volume is little, and is in light weight, and failure rate is low, the capacity usage ratio height.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

Fig. 2 is an A-A schematic cross-section among Fig. 1.

Fig. 3 is an embodiment of the invention armature winding connected mode schematic diagram.

Among the embodiment: 1. 2. 3. turbines of nut, 4. volutes, 5. bolts, 6. rear end caps, 7. front end housings, 8. stators, 9. rotors 10. are concentrated armature winding 11. electric excitation winding

Exhaust gas drive double-salient-pole generator is made up of rotor 9, stator 8, front end housing 7, rear end cap 6, turbine 3, volute 4, on the axle 2 turbine 3 is installed, turbine 3 is installed in volute 4 central authorities, be fixed on the axle 2 by nut 1, volute 4 is fixed on the commutator end bearing support bracket 6 by bolt 5, and described stator 8, rotor 9 form by silicon steel plate stacking, its basic structure be 3 mutually 64 toothings, be that the stator number of teeth is 6, the rotor number of teeth is 4, as shown in Figure 2; Do not have winding on the rotor, suit is concentrated armature winding 10 on the stator, and electric excitation winding 11 can be contained in stator yoke portion, also can be sleeved on the stator tooth; Present embodiment has an electric excitation winding, its connected mode as shown in Figure 3, i.e. armature winding forward on two teeth that stator is relative series connection constitutes a phase, forms B-X, three windings of C-Y and D-Z, three phase windings send constant DC by diode rectifier circuit again.

The direct current that exhaust gas drive double-salient-pole generator of the present invention is exported can directly be given vehicle-mounted direct-flow current consumer power supply, also can give vehicle power, super capacitor charging.

The description that the foregoing description is very detailed a kind of performance of the present invention, be a kind of in the biconvex utmost point exhaust gas driven generator of excitation-type among the present invention, not talkative the present invention is with regard to this a kind of execution mode, protection scope of the present invention is defined by the claims.

Claims

1, a kind of exhaust gas drive double-salient-pole generator comprises by rotor, stator, front end housing, rear end cap, turbine, volute and forming, and it is characterized in that: adopt rotor biconvex electrode structure, brushless, no permanent magnetism, no winding on the rotor; Turbine is installed in volute central authorities, is fixed on the axle by nut, and volute is by being bolted on the commutator end bearing support bracket.

2, exhaust gas drive double-salient-pole generator according to claim 1, it is characterized in that: described exhaust gas drive double-salient-pole generator is an excitation-type, promptly is with on the stator to concentrate armature winding and excitation winding.

3, exhaust gas drive double-salient-pole generator according to claim 1, it is characterized in that: described exhaust gas drive double-salient-pole generator is a magneto, promptly concentrates armature winding and permanent magnet all to be positioned on the stator.